JPH04224327A - Brake sliding part - Google Patents
Brake sliding partInfo
- Publication number
- JPH04224327A JPH04224327A JP40521390A JP40521390A JPH04224327A JP H04224327 A JPH04224327 A JP H04224327A JP 40521390 A JP40521390 A JP 40521390A JP 40521390 A JP40521390 A JP 40521390A JP H04224327 A JPH04224327 A JP H04224327A
- Authority
- JP
- Japan
- Prior art keywords
- sliding part
- pad
- disk
- carbon
- brake sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 40
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 17
- 239000004917 carbon fiber Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims abstract description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 8
- 239000002296 pyrolytic carbon Substances 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract 2
- 241000345998 Calamus manan Species 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 235000012950 rattan cane Nutrition 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000005011 phenolic resin Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000010304 firing Methods 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000000280 densification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 150000008282 halocarbons Chemical class 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229910018404 Al2 O3 Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- -1 pitch-based Chemical compound 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は摩擦，摺動特性に優れた
炭素繊維強化炭素複合材（以下、Ｃ／Ｃ複合材という）
製のブレーキ摺動部に関するものである。[Industrial Application Field] The present invention is a carbon fiber-reinforced carbon composite material (hereinafter referred to as C/C composite material) with excellent friction and sliding properties.
This relates to the brake sliding part made by the company.
【０００２】0002
【従来の技術】従来、自動車用及び自動２輪用のブレー
キ材としては金属製ブレーキ材が多く用いられてきたが
、近年、その優れた耐摩耗性，耐熱性，耐酸化性，軽量
性によりＣ／Ｃ複合材がブレーキ材として使用されてき
ている。[Prior Art] Conventionally, metal brake materials have been widely used as brake materials for automobiles and motorcycles, but in recent years, metal brake materials have been widely used due to their excellent wear resistance, heat resistance, oxidation resistance, and light weight. C/C composites have been used as brake materials.
【０００３】0003
【発明が解決しようとする課題】しかしながら、Ｃ／Ｃ
複合材においては、温度により摩擦係数が変動し、摩擦
開始の直後、即ち低温（１００℃以下）において摩擦係
数が低く（トルク値が小さく）、その後摩擦の進行で温
度が上昇すると共に摩擦係数が徐々に又は急激に高く（
トルク値が大きく）なるいわゆる２段トルク波形現象が
起ったり、又は、２段波形とはならないが、摩擦係数が
低い状態のままであるという現象が起っていた。[Problem to be solved by the invention] However, C/C
In composite materials, the coefficient of friction changes depending on the temperature. Immediately after the start of friction, that is, at low temperatures (below 100°C), the coefficient of friction is low (the torque value is small), and then as the temperature increases as friction progresses, the coefficient of friction decreases. gradually or suddenly increases (
A so-called two-stage torque waveform phenomenon occurs in which the torque value increases), or a phenomenon in which the friction coefficient remains low although the two-stage waveform does not occur.
【０００４】従って安定した適切な摩擦係数を得るため
に、ブレーキをかける際ブレーキ材を保温したり、予め
軽くブレーキをかけ暖めておいたりして、２段波形又は
低摩擦係数を防ぐ必要があった。[0004] Therefore, in order to obtain a stable and appropriate coefficient of friction, it is necessary to keep the brake material warm before applying the brakes, or to warm up the brake material by lightly applying the brakes in advance to prevent a two-stage waveform or a low coefficient of friction. Ta.
【０００５】[0005]
【課題を解決するための手段】このような従来技術の課
題に鑑み、本発明者等は、Ｃ／Ｃ複合材製のブレーキ摺
動材について鋭意検討を重ねた結果、ディスク及びパッ
ドからなるブレーキ摺動部において、ディスク材及びパ
ッド材の強化材及び緻密化マトリックスをそれぞれ特定
のものとすることにより、上記課題が解決できることを
知得し本発明を完成するに到った。[Means for Solving the Problems] In view of the problems of the prior art, the inventors of the present invention have conducted intensive studies on brake sliding materials made of C/C composite materials, and have developed a brake consisting of a disc and a pad. The present invention was completed based on the knowledge that the above problem can be solved by using specific reinforcing materials and densification matrices for the disk material and pad material in the sliding portion.
【０００６】即ち、本発明の目的は、２段波形がなくか
つ通常の運転条件で動摩擦係数が０．３以上すなわち低
摩擦係数ではなく、低温特性が優れたＣ／Ｃ複合材製の
ブレーキ摺動部を提供することにあり、その要旨は、デ
ィスク材及びパッドからなるブレーキ摺動部において、
ディスク材及びパッド材はいずれも複数の単繊維の束か
らなる短繊維状の炭素繊維を解繊したものを強化材とす
る炭素繊維強化炭素複合材から構成され、ディスク材は
熱分解炭素及び熱硬化性樹脂を緻密化マトリックスとし
、１５００〜２０００℃で最終熱処理を受けたものであ
り、パッド材はピッチ単独又はピッチ及び熱硬化性樹脂
を緻密化マトリックスとするものであることを特徴とす
るブレーキ摺動部に存する。That is, an object of the present invention is to provide a brake slide made of a C/C composite material that does not have a two-stage waveform and has a dynamic friction coefficient of 0.3 or more under normal operating conditions, that is, it does not have a low friction coefficient, but has excellent low temperature characteristics. The purpose is to provide a brake sliding part consisting of a disc material and a pad.
Both the disk material and the pad material are made of carbon fiber-reinforced carbon composite material, which is reinforced with short carbon fibers made of bundles of multiple single fibers, and the disk material is made of pyrolytic carbon and A brake comprising a hardening resin as a densified matrix and subjected to a final heat treatment at 1,500 to 2,000°C, and a pad material comprising pitch alone or pitch and a thermosetting resin as a densifying matrix. Exists in sliding parts.
【０００７】以下、本発明につき詳細に説明する。本発
明で用いる炭素繊維としては、ピッチ系、ＰＡＮ系ある
いはレーヨン系炭素繊維等の公知のいずれのものも使用
できる。更に必要に応じてＳｉＣ，Ａｌ２ Ｏ３ ，カ
ーボンブラックなどの無機繊維、無機物などを添加して
もよい。The present invention will be explained in detail below. As the carbon fiber used in the present invention, any known carbon fiber such as pitch-based, PAN-based, or rayon-based carbon fiber can be used. Furthermore, inorganic fibers and inorganic substances such as SiC, Al2 O3, and carbon black may be added as necessary.
【０００８】用いられる炭素繊維の形態としては、複数
の単繊維の束から成るトウ，ストランド，ロービング、
ヤーンなどの形態であり、これらをカッテングすること
により得られる短繊維状のものを用いる。本発明におい
ては、通常０．３〜１００ｍｍ、好ましくは５〜５０ｍ
ｍ程度の短繊維を使用する。炭素繊維自体の径や弾性率
は、一般に複合材として用いられる範囲で特に限定はさ
れない。Ｃ／Ｃ複合材とする際に例えば特開昭６２−９
６３６４号、特開平１−１７６２７３号公報等に記載の
方法で解繊・分散してプリフォーム又はシートとする。
これらにマトリックス材を含浸して金型に充填し、１０
０〜５００℃の温度で加圧成形してＶｆ （繊維含有量
）が５〜６５％、好ましくは１０〜５５％程度の成形体
を得る。その後、Ｎ２ ガスなどの不活性ガス雰囲気中
で１〜２００℃／ｈｒの昇温速度で８００〜２５００℃
まで昇温し、焼成してＣ／Ｃ複合材を得る。[0008] The forms of carbon fibers used include tows, strands, rovings, and
It is in the form of yarn, etc., and short fibers obtained by cutting these are used. In the present invention, the length is usually 0.3 to 100 mm, preferably 5 to 50 m.
Use short fibers of about The diameter and elastic modulus of the carbon fibers themselves are not particularly limited as long as they are generally used as composite materials. For example, when making a C/C composite material, JP-A-62-9
The fibers are defibrated and dispersed into a preform or sheet by the methods described in JP-A No. 6364, JP-A-1-176273, and the like. These are impregnated with matrix material and filled into a mold,
Pressure molding is performed at a temperature of 0 to 500°C to obtain a molded product having a Vf (fiber content) of about 5 to 65%, preferably about 10 to 55%. Thereafter, the temperature was raised to 800 to 2500°C at a temperature increase rate of 1 to 200°C/hr in an inert gas atmosphere such as N2 gas.
C/C composite material is obtained by raising the temperature to a temperature of 100.degree.
【０００９】前述の焼成によって得られたＣ／Ｃ複合材
をディスク材用及びパッド材用とししてたとえば夫々次
の方法により緻密化処理及び最終処理を行ない、目的の
Ｃ／Ｃ複合材を得る。[0009] The C/C composite material obtained by the above-mentioned firing is subjected to densification treatment and final treatment for disk material and pad material, respectively, by the following methods to obtain the desired C/C composite material. .
【００１０】（ａ） ディスク材の処理誘導加熱コイ
ル等により反応管内に載置した上記Ｃ／Ｃ複合材を加熱
し、炭化水素類あるいはハロゲン化炭化水素類の蒸気を
Ｈ２ ガス、Ａｒガス或いはＮ２ ガスと共に反応器内
へ供給し、生成する熱分解炭素で空隙を含浸し、緻密化
する。次いで該Ｃ／Ｃ複合材を所定温度に加熱された槽
内に載置し、槽内を真空とした後、熱硬化性樹脂、好ま
しくはフェノール樹脂を供給して空隙にマトリックス材
を含浸する。この後８００〜１０００℃の温度で焼成し
、含浸した熱硬化性樹脂を炭素化する。上記樹脂含浸工
程を繰り返すことによりＣ／Ｃ複合材の緻密化処理を行
なう。さらに１５００℃以上２０００℃以下、好ましく
は１８００℃以下で最終熱処理をしてディスク材用のＣ
／Ｃ複合材を得る。(a) Treatment of disk material The C/C composite material placed in the reaction tube is heated by an induction heating coil or the like, and the vapor of hydrocarbons or halogenated hydrocarbons is converted into H2 gas, Ar gas, or N2 gas. It is fed into the reactor together with gas, and the pores are impregnated and densified with the generated pyrolytic carbon. Next, the C/C composite material is placed in a tank heated to a predetermined temperature, and after the tank is evacuated, a thermosetting resin, preferably a phenol resin, is supplied to impregnate the voids with the matrix material. Thereafter, the impregnated thermosetting resin is carbonized by firing at a temperature of 800 to 1000°C. The C/C composite material is densified by repeating the resin impregnation step. Furthermore, final heat treatment is performed at 1500°C or higher and 2000°C or lower, preferably 1800°C or lower, to prepare the C for disc material.
/C composite material is obtained.
【００１１】（ｂ） パッド材の処理所定温度に加熱
された槽内に前述のＣ／Ｃ複合材を載置し、槽内を真空
とした後、溶融ピッチ又は溶融ピッチ及び熱硬化性樹脂
、好ましくはフェノール樹脂を順次供給し、焼成により
生じた空隙にマトリックス材を含浸する。この後、再度
８００〜２５００℃の温度で焼成する。上記工程を繰り
返すことによりＣ／Ｃ複合材の緻密化処理を行なう。さ
らに必要により２５００℃以下の温度にて最終熱処理を
してパッド材用のＣ／Ｃ複合材を得る。(b) Processing of pad material After placing the above-mentioned C/C composite material in a tank heated to a predetermined temperature and evacuating the tank, the molten pitch or the molten pitch and thermosetting resin, Preferably, the phenol resin is sequentially supplied to impregnate the matrix material into the voids created by firing. After that, it is fired again at a temperature of 800 to 2500°C. By repeating the above steps, the C/C composite material is densified. Further, if necessary, a final heat treatment is performed at a temperature of 2500° C. or lower to obtain a C/C composite material for a pad material.
【００１２】0012
【実施例】以下、本発明を実施例により具体的に説明す
るが、本発明はその要旨をこえない限り、下記実施例に
よって限定されるものではない。[Examples] The present invention will be explained in detail below using examples, but the present invention is not limited to the following examples unless the gist of the invention is exceeded.
【００１３】製造例１（実施例対応）
長さ１０ｍｍ、フィラメント数４０００のピッチ系炭素
繊維７２５ｇをビーターにて湿式解繊した後に、外筒３
００ｍｍ、内筒１２０ｍｍのドーナツ状の低部に網目１
５０メッシュのスクリーン及び更に外側に底板を有する
成形用型に水と共に投入し、均一に撹拌した後、底板を
引き抜くことにより底部から一気に溶液全量を除去する
ことにより、炭素繊維が均一に分散したドーナツ状のプ
リフォームを得た。Production Example 1 (corresponding to Examples) After wet-defibrating 725 g of pitch-based carbon fiber with a length of 10 mm and a number of filaments of 4000 using a beater, the outer cylinder 3
00mm, inner cylinder 120mm, donut-shaped bottom with mesh 1
Donuts with uniformly dispersed carbon fibers are produced by pouring water into a mold with a 50 mesh screen and a bottom plate on the outside, stirring evenly, and then removing the entire solution from the bottom at once by pulling out the bottom plate. A preform of the shape was obtained.
【００１４】該プリフォームを乾燥した後にフェノール
樹脂とエタノールとの混合物３４００ｇを含浸し、６時
間７０℃で乾燥し、１３７０ｇのプリプレグとし、さら
に上記と同一内外径を有する金型内に納めて２５０℃の
温度で成形・硬化し炭素含有率（Ｖｆ ）５０％の成形
体を得た。この成形体を加熱炉で２０００℃迄焼成した
後、高周波誘導加熱装置により、５５０℃に加熱し、ハ
ロゲン化炭化水素蒸気を、窒素ガスをキャリアーガスと
して反応器内に導入して熱分解炭素により、気孔を充填
する緻密化処理を行なった。After drying the preform, it was impregnated with 3,400 g of a mixture of phenolic resin and ethanol, dried at 70° C. for 6 hours to obtain a prepreg weighing 1,370 g, and placed in a mold having the same inner and outer diameters as above. The molded product was molded and cured at a temperature of 50.degree. C. to obtain a molded product having a carbon content (Vf) of 50%. After firing this compact in a heating furnace to 2000°C, it was heated to 550°C using a high-frequency induction heating device, and halogenated hydrocarbon vapor was introduced into the reactor using nitrogen gas as a carrier gas to generate pyrolytic carbon. , a densification process was performed to fill the pores.
【００１５】次いで、フェノール樹脂を含浸した後、加
熱炉で１０００℃で焼成した。さらに同様の含浸−焼成
の操作を再度繰り返しその後に１７００℃の熱処理を行
なって気孔率１３％のディスク材用のＣ／Ｃ複合材を得
た。[0015] Next, after being impregnated with phenol resin, it was fired at 1000°C in a heating furnace. Further, the same impregnation-firing operation was repeated again, and then heat treatment was performed at 1700°C to obtain a C/C composite material for a disk material having a porosity of 13%.
【００１６】製造例２（実施例対応）
３０ｍｍ長に切断したフィラメント数４０００のピッチ
系炭素繊維をランダムウェバーにて解繊し２次元ランダ
ムに配向した目付２００ｇ／ｍ２ のシートを得た。こ
のシートにエタノールで希釈したフェノール樹脂を含浸
させた後、乾燥し、２００ｇ／ｍ２ の炭素繊維に対し
、１３０ｇ／ｍ２ のフェノール樹脂を含浸したシート
を作製した。このシートを金型内へ積層し、２５０℃に
て加圧成形し、Ｖｆ ≒５０％の成形体を得た。この成
形体を加熱炉で２０００℃迄焼成した。Production Example 2 (Corresponding to Examples) Pitch-based carbon fibers having 4000 filaments cut into 30 mm length were defibrated using a random webber to obtain a two-dimensionally randomly oriented sheet with a basis weight of 200 g/m 2 . This sheet was impregnated with a phenol resin diluted with ethanol and then dried to produce a sheet in which 200 g/m 2 of carbon fiber was impregnated with 130 g/m 2 of phenol resin. This sheet was laminated into a mold and pressure-molded at 250°C to obtain a molded article with Vf≈50%. This molded body was fired in a heating furnace to 2000°C.
【００１７】次いで、ピッチを含浸した後、加熱炉で１
０００℃で焼成した。さらに同様の含浸−焼成の操作を
再度繰り返しその後に２０００℃の熱処理を行なって気
孔率８％のパッド材用のＣ／Ｃ複合材を得た。Next, after impregnating pitch, it is heated in a heating furnace for 1
It was fired at 000°C. Further, the same impregnation-firing operation was repeated again, and then heat treatment was performed at 2000°C to obtain a C/C composite material for pad material having a porosity of 8%.
【００１８】製造例３（実施例対応）
３０ｍｍ長に切断したフィラメント数４０００のピッチ
系炭素繊維をランダムウェバーにて解繊し２次元ランダ
ムに配向した目付２００ｇ／ｍ２ のシートを得た。こ
のシートにエタノールで希釈したフェノール樹脂を含浸
させた後、乾燥し、２００ｇ／ｍ２ の炭素繊維に対し
、１３０ｇ／ｍ２ のフェノール樹脂を含浸したシート
を作製した。このシートを金型内へ積層し、２５０℃に
て加圧成形しＶｆ ≒５０％の成形体を得た。この成形
体を加熱炉で２０００℃迄焼成した。Production Example 3 (Corresponding to Examples) Pitch-based carbon fibers having 4,000 filaments cut to a length of 30 mm were defibrated using a random webber to obtain a two-dimensionally randomly oriented sheet with a basis weight of 200 g/m 2 . This sheet was impregnated with a phenol resin diluted with ethanol and then dried to produce a sheet in which 200 g/m 2 of carbon fiber was impregnated with 130 g/m 2 of phenol resin. This sheet was laminated into a mold and pressure-molded at 250°C to obtain a molded product with Vf≈50%. This molded body was fired in a heating furnace to 2000°C.
【００１９】次いで、ピッチを含浸した後、加熱炉で１
０００℃で焼成した。その後にフェノール樹脂を含浸し
た後、加熱炉で１０００℃まで焼成した。Next, after impregnating pitch, it is heated in a heating furnace for 1
It was fired at 000°C. After that, it was impregnated with phenol resin, and then fired in a heating furnace to 1000°C.
【００２０】さらにフェノール樹脂の含浸−焼成の操作
を再度繰り返し、その後に２０００℃の熱処理を行って
気孔率１４％のパッド材用のＣ／Ｃ複合材を得た。[0020] Furthermore, the operation of impregnating with phenol resin and firing was repeated again, followed by heat treatment at 2000°C to obtain a C/C composite material for pad material having a porosity of 14%.
【００２１】製造例４（比較例対応）
製造例２と同様な方法でディスク材用のＣ／Ｃ複合材を
得た。Production Example 4 (Corresponding to Comparative Example) A C/C composite material for a disk material was obtained in the same manner as Production Example 2.
【００２２】製造例５（比較例対応）
製造例１と同様な方法でパット材用のＣ／Ｃ複合材を得
た。Production Example 5 (corresponding to comparative example) A C/C composite material for pad material was obtained in the same manner as in Production Example 1.
【００２３】試験例１
以上の製造例のディスク材用及びパッド材用のＣ／Ｃ複
合材を組み合わせたブレーキ摺動部の低温スタート時の
摩擦特性を表１に示す。Test Example 1 Table 1 shows the friction characteristics at a low temperature start of the brake sliding part made of a combination of the C/C composite materials for the disc material and pad material manufactured in the above manufacturing example.
【００２４】[0024]
【発明の効果】本発明により、２段波形がなくかつ通常
の運転条件で摩擦係数が０．３以上という摩擦の低温特
性に優れたＣ／Ｃ複合材製のブレーキ摺動部を容易に得
ることができる。[Effects of the Invention] According to the present invention, it is easy to obtain a brake sliding part made of a C/C composite material that does not have two-step waveforms and has excellent low-temperature frictional characteristics such as a coefficient of friction of 0.3 or more under normal operating conditions. be able to.
【００２５】[0025]
【表１】[Table 1]
Claims (2)
摺動部において、ディスク材及びパッド材はいずれも複
数の単繊維の束からなる短繊維状の炭素繊維を解繊した
ものを強化材とする炭素繊維強化炭素複合材から構成さ
れ、ディスク材は熱分解炭素及び熱硬化性樹脂を緻密化
マトリックスとし、１５００〜２０００℃で最終熱処理
を受けたものであり、パッド材はピッチ単独又はピッチ
及び熱硬化性樹脂を緻密化マトリックスとするものであ
る、ことを特徴とするブレーキ摺動部。Claim 1: In a brake sliding part consisting of a disc and a pad, both the disc material and the pad material are made of carbon fibers reinforced with short carbon fibers made of bundles of a plurality of single fibers. Constructed from reinforced carbon composite material, the disc material has a densified matrix of pyrolytic carbon and thermosetting resin and has undergone final heat treatment at 1500-2000°C, and the padding material consists of pitch alone or pitch and thermosetting resin. A brake sliding part characterized by having a resin as a densified matrix.
０ｍｍの範囲である請求項１ 記載のブレーキ摺動部。Claim 2: The length of the carbon fiber before defibration is 0.3 to 10
The brake sliding part according to claim 1, wherein the brake sliding part is in the range of 0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40521390A JP2969957B2 (en) | 1990-12-21 | 1990-12-21 | Brake sliding part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40521390A JP2969957B2 (en) | 1990-12-21 | 1990-12-21 | Brake sliding part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04224327A true JPH04224327A (en) | 1992-08-13 |
| JP2969957B2 JP2969957B2 (en) | 1999-11-02 |
Family
ID=18514839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP40521390A Expired - Lifetime JP2969957B2 (en) | 1990-12-21 | 1990-12-21 | Brake sliding part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2969957B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0710779A3 (en) * | 1994-10-25 | 1996-05-15 | Mitsubishi Chemical Corporation | Sliding unit for a brake and method of producing the same |
-
1990
- 1990-12-21 JP JP40521390A patent/JP2969957B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0710779A3 (en) * | 1994-10-25 | 1996-05-15 | Mitsubishi Chemical Corporation | Sliding unit for a brake and method of producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2969957B2 (en) | 1999-11-02 |
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